scholarly journals Reliability evaluation of avionics system with imperfect fault coverage and propagated failure mechanisms

2020 ◽  
Author(s):  
Ying CHEN ◽  
Song YANG ◽  
Rui KANG
Keyword(s):  
Failure Mechanisms ◽  
Reliability Evaluation ◽  
Fault Coverage

On the role of tin underlays for the prevention of thermal grooving in thin gold films

1986 ◽  
Vol 44 ◽  
pp. 732-733
Author(s):  
Jin Young Kim ◽  
R. E. Hummel ◽  
R. T. DeHoff
Keyword(s):  
Thin Film ◽  
Free Surface ◽  
Grain Boundary ◽  
Beneficial Effect ◽  
Failure Mechanism ◽  
Failure Mechanisms ◽  
Distinct Advantage ◽  
Gold Films ◽  
Gold Thin Film

Gold thin film metallizations in microelectronic circuits have a distinct advantage over those consisting of aluminum because they are less susceptible to electromigration. When electromigration is no longer the principal failure mechanism, other failure mechanisms caused by d.c. stressing might become important. In gold thin-film metallizations, grain boundary grooving is the principal failure mechanism.Previous studies have shown that grain boundary grooving in gold films can be prevented by an indium underlay between the substrate and gold. The beneficial effect of the In/Au composite film is mainly due to roughening of the surface of the gold films, redistribution of indium on the gold films and formation of In2O3 on the free surface and along the grain boundaries of the gold films during air annealing.

Real-time cryo-deformation of polypropylene and impact-modified polypropylene in the transmission electron microscope

1993 ◽  
Vol 51 ◽  
pp. 892-893
Author(s):  
Robert C. Cieslinski ◽  
H. Craig Silvis ◽  
Daniel J. Murray
Keyword(s):  
Electron Microscope ◽  
Transmission Electron Microscope ◽  
Failure Mechanisms ◽  
Brittle Transition ◽  
Molded Part ◽  
Transmission Electron ◽  
Solvent Cast ◽  
The Impact ◽  
Annealed Copper ◽  
Dynamic Plane

An understanding of the mechanical behavior polymers in the ductile-brittle transition region will result in materials with improved properties. A technique has been developed that allows the realtime observation of dynamic plane stress failure mechanisms in the transmission electron microscope. With the addition of a cryo-tensile stage, this technique has been extented to -173°C, allowing the observation of deformation during the ductile-brittle transition.The technique makes use of an annealed copper cartridge in which a thin section of bulk polymer specimen is bonded and plastically deformed in tension in the TEM using a screw-driven tensile stage. In contrast to previous deformation studies on solvent-cast films, this technique can examine the frozen-in morphology of a molded part.The deformation behavior of polypropylene and polypropylene impact modified with EPDM (ethylene-propylene diene modified) and PE (polyethylene) rubbers were investigated as function of temperature and the molecular weight of the impact modifier.

Reliability evaluation of substation control systems

1999 ◽  
Vol 146 (6) ◽  
pp. 626 ◽  
Author(s):  
L.R. Castro Ferreira ◽  
P.A. Crossley ◽  
J. Goody ◽  
R.N. Allan
Keyword(s):  
Control Systems ◽  
Reliability Evaluation

Reliability Evaluation for a Wet-Plated Electrode with a Al/Al2O3/Cu Insulated Metal Substrate

2013 ◽  
Vol 51 (7) ◽  
pp. 523-527 ◽  
Author(s):  
Su-Jeong Suh ◽  
Chang-Hyoung Lee ◽  
Young-Lae Cho ◽  
Hwa-Sun Park ◽  
Won-Pyo Lee ◽  
...  
Keyword(s):  
Reliability Evaluation ◽  
Metal Substrate

A Hybrid Method for Distribution Substation Reliability Evaluation

2017 ◽  
Vol 12 (2) ◽  
pp. 142
Author(s):  
Hemakumar Reddy Galiveeti ◽  
Arup Kumar Goswami ◽  
Nalin B. Dev Choudhury
Keyword(s):  
Hybrid Method ◽  
Reliability Evaluation
Sign in / Sign up

Export Citation Format

Share Document